Revert 2004-09-09 Giovanni Bajo <giovannibajo@gcc.gnu.org>

	* lambda-mat.c (lambda_matrix_inverse_hard): Use gcc_assert
	and gcc_unreachable instead of abort.
	* lambda.h (lambda_vector_min_nz): Likewise.
	* langhooks.c lhd_set_decl_assembler_name, lhd_can_use_bit_fields_p,
	lhd_incomplete_type_error, lhd_expand_expr, lhd_types_compatible_p,
	lhd_gimplify_expr): Likewise.
	* lcm.c (optimize_mode_switching): Likewise.
	* local-alloc.c (update_equiv_regs, block_alloc, find_free_reg):
	Likewise.
	* loop-doloop.c (doloop_modify): Likewise.
	* loop-invariant.c (record_use): Likewise.
	* loop-iv.c (get_biv_step_1, get_biv_step, iv_analyze, get_iv_value,
	canon_condition, simplify_using_condition,
	simplify_using_initial_values, shorten_into_mode,
	canonicalize_iv_subregs, iv_number_of_iterations): Likewise.
	* loop-unroll.c (unroll_and_peel_loops, peel_loop_completely,
	unroll_loop_constant_iterations, unroll_loop_runtime_iterations,
	peel_loop_simple, unroll_loop_stupid): Likewise.
	* loop-unswitch.c (compare_and_jump_seq, unswitch_single_loop,
	unswitch_loop): Likewise.
	* loop.c (gen_prefetch, loop_optimize, rtx_equal_for_loop_p,
	move_movables, replace_call_address, find_and_verify_loops,
	rtx_equal_for_prefetch_p, record_giv, general_induction_var,
	simplify_giv_expr, check_ext_dependent_givs, try_copy_prop,
	loop_giv_dump): Likewise.
	* loop.h (INSN_LUID): Likewise.
	* modulo-sched.c (normalize_sched_times, generate_prolog_epilog,
	sms_schedule, check_nodes_order): Likewise.
	* optabs.c (gen_conditional, add_equal_note, expand_simple_binop,
	expand_twoval_unop, expand_twoval_binop, expand_twoval_binop_libfunc,
	expand_simple_unop, emit_no_conflict_block, prepare_cmp_insn,
	emit_cmp_and_jump_insn_1, emit_cmp_and_jump_insns,
	prepare_float_lib_cmp, gen_add2_insn, have_add2_insn, gen_sub2_insn,
	have_sub2_insn, expand_float, expand_fix, debug_optab_libfuncs):
	Likewise.
	* opts.c (common_handle_option): Likewise.
	* params.c (set_param_value): Likewise.
	* passes.c (open_dump_file, rest_of_handle_final): Likewise.
	* postreload-gcse.c (expr_equiv_p, oprs_unchanged_p,hash_scan_set,
	reg_set_between_after_reload_p, reg_used_between_after_reload_p,
	get_avail_load_store_reg, eliminate_partially_redundant_load):
	Likewise.
	* postreload.c (reload_cse_simplify_set, reload_combine_note_use):
	Likewise.
	* predict.c (tree_predicted_by_p, expected_value_to_br_prob,
	propagate_freq, expensive_function_p): Likewise.
	* pretty-print.c (pp_base_format_text)
	* profile.c (instrument_edges, instrument_values,
	compute_branch_probabilities, branch_prob, union_groups,
	end_branch_prob, tree_register_profile_hooks): Likewise.

From-SVN: r87290

1 files changed, 23 insertions, 17 deletions

diff --git a/gcc/loop-unswitch.c b/gcc/loop-unswitch.c
index c39718b..08780f0 100644
--- a/gcc/loop-unswitch.c
+++ b/gcc/loop-unswitch.c
@@ -103,11 +103,13 @@ compare_and_jump_seq (rtx op0, rtx op1, enum rtx_code comp, rtx label, int prob,
     {
       /* A hack -- there seems to be no easy generic way how to make a
 	 conditional jump from a ccmode comparison.  */
-      gcc_assert (cinsn);
+      if (!cinsn)
+	abort ();
       cond = XEXP (SET_SRC (pc_set (cinsn)), 0);
-      gcc_assert (GET_CODE (cond) == comp);
-      gcc_assert (rtx_equal_p (op0, XEXP (cond, 0)));
-      gcc_assert (rtx_equal_p (op1, XEXP (cond, 1)));
+      if (GET_CODE (cond) != comp
+	  || !rtx_equal_p (op0, XEXP (cond, 0))
+	  || !rtx_equal_p (op1, XEXP (cond, 1)))
+	abort ();
       emit_jump_insn (copy_insn (PATTERN (cinsn)));
       jump = get_last_insn ();
       JUMP_LABEL (jump) = JUMP_LABEL (cinsn);
@@ -116,7 +118,8 @@ compare_and_jump_seq (rtx op0, rtx op1, enum rtx_code comp, rtx label, int prob,
     }
   else
     {
-      gcc_assert (!cinsn);
+      if (cinsn)
+	abort ();
 
       op0 = force_operand (op0, NULL_RTX);
       op1 = force_operand (op1, NULL_RTX);
@@ -376,7 +379,8 @@ unswitch_single_loop (struct loops *loops, struct loop *loop,
 
   /* Unswitch the loop on this condition.  */
   nloop = unswitch_loop (loops, loop, bbs[i], cond, cinsn);
-  gcc_assert (nloop);
+  if (!nloop)
+  abort ();
 
   /* Invoke itself on modified loops.  */
   unswitch_single_loop (loops, nloop, rconds, num + 1);
@@ -408,17 +412,19 @@ unswitch_loop (struct loops *loops, struct loop *loop, basic_block unswitch_on,
   rtx seq;
 
   /* Some sanity checking.  */
-  gcc_assert (flow_bb_inside_loop_p (loop, unswitch_on));
-
-  gcc_assert (unswitch_on->succ);
-  gcc_assert (unswitch_on->succ->succ_next);
-  gcc_assert (!unswitch_on->succ->succ_next->succ_next);
-
-  gcc_assert (just_once_each_iteration_p (loop, unswitch_on));
-  gcc_assert (!loop->inner);
-  gcc_assert (flow_bb_inside_loop_p (loop, unswitch_on->succ->dest));
-  gcc_assert (flow_bb_inside_loop_p (loop,
-				     unswitch_on->succ->succ_next->dest));
+  if (!flow_bb_inside_loop_p (loop, unswitch_on))
+    abort ();
+  if (!unswitch_on->succ || !unswitch_on->succ->succ_next ||
+      unswitch_on->succ->succ_next->succ_next)
+    abort ();
+  if (!just_once_each_iteration_p (loop, unswitch_on))
+    abort ();
+  if (loop->inner)
+    abort ();
+  if (!flow_bb_inside_loop_p (loop, unswitch_on->succ->dest))
+    abort ();
+  if (!flow_bb_inside_loop_p (loop, unswitch_on->succ->succ_next->dest))
+    abort ();
 
   entry = loop_preheader_edge (loop);